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[83.57.170.65]) by smtp.gmail.com with ESMTPSA id z19sm3920246wmi.3.2020.09.10.08.22.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2020 08:22:32 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v4 1/9] target/i386: Restrict X86CPUFeatureWord to X86 targets Date: Thu, 10 Sep 2020 17:22:17 +0200 Message-Id: <20200910152225.524322-2-philmd@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200910152225.524322-1-philmd@redhat.com> References: <20200910152225.524322-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0.003 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/10 08:38:09 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Ben Warren , David Hildenbrand , Markus Armbruster , "Michael S. Tsirkin" , Peter Lieven , "Dr. David Alan Gilbert" , Richard Henderson , Max Reitz , Ronnie Sahlberg , Paolo Bonzini , Igor Mammedov , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , qemu-block@nongnu.org, Michael Roth , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Move out x86-specific structures from generic machine code. Since x86_cpu_initfn() register various CPU properties that should not be available in user-mode (tsc/stepping/kvm/...), add a stub to satisfy the linker. Since only qemu-system-FOO and qemu-storage-daemon provide QMP monitors, assert the stub function is never called. Acked-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé --- qapi/machine-target.json | 45 ++++++++++++++++++++++++++++++++++++++ qapi/machine.json | 42 ----------------------------------- target/i386/cpu.c | 2 +- target/i386/machine-stub.c | 23 +++++++++++++++++++ target/i386/meson.build | 1 + 5 files changed, 70 insertions(+), 43 deletions(-) create mode 100644 target/i386/machine-stub.c diff --git a/qapi/machine-target.json b/qapi/machine-target.json index 698850cc78d..b4d769a53b9 100644 --- a/qapi/machine-target.json +++ b/qapi/machine-target.json @@ -4,6 +4,51 @@ # This work is licensed under the terms of the GNU GPL, version 2 or later. # See the COPYING file in the top-level directory. +## +# @X86CPURegister32: +# +# A X86 32-bit register +# +# Since: 1.5 +## +{ 'enum': 'X86CPURegister32', + 'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ], + 'if': 'defined(TARGET_I386)' } + +## +# @X86CPUFeatureWordInfo: +# +# Information about a X86 CPU feature word +# +# @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word +# +# @cpuid-input-ecx: Input ECX value for CPUID instruction for that +# feature word +# +# @cpuid-register: Output register containing the feature bits +# +# @features: value of output register, containing the feature bits +# +# Since: 1.5 +## +{ 'struct': 'X86CPUFeatureWordInfo', + 'data': { 'cpuid-input-eax': 'int', + '*cpuid-input-ecx': 'int', + 'cpuid-register': 'X86CPURegister32', + 'features': 'int' }, + 'if': 'defined(TARGET_I386)' } + +## +# @DummyForceArrays: +# +# Not used by QMP; hack to let us use X86CPUFeatureWordInfoList internally +# +# Since: 2.5 +## +{ 'struct': 'DummyForceArrays', + 'data': { 'unused': ['X86CPUFeatureWordInfo'] }, + 'if': 'defined(TARGET_I386)' } + ## # @CpuModelInfo: # diff --git a/qapi/machine.json b/qapi/machine.json index 0ac1880e4a4..47e9c0b1831 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -516,48 +516,6 @@ 'dst': 'uint16', 'val': 'uint8' }} -## -# @X86CPURegister32: -# -# A X86 32-bit register -# -# Since: 1.5 -## -{ 'enum': 'X86CPURegister32', - 'data': [ 'EAX', 'EBX', 'ECX', 'EDX', 'ESP', 'EBP', 'ESI', 'EDI' ] } - -## -# @X86CPUFeatureWordInfo: -# -# Information about a X86 CPU feature word -# -# @cpuid-input-eax: Input EAX value for CPUID instruction for that feature word -# -# @cpuid-input-ecx: Input ECX value for CPUID instruction for that -# feature word -# -# @cpuid-register: Output register containing the feature bits -# -# @features: value of output register, containing the feature bits -# -# Since: 1.5 -## -{ 'struct': 'X86CPUFeatureWordInfo', - 'data': { 'cpuid-input-eax': 'int', - '*cpuid-input-ecx': 'int', - 'cpuid-register': 'X86CPURegister32', - 'features': 'int' } } - -## -# @DummyForceArrays: -# -# Not used by QMP; hack to let us use X86CPUFeatureWordInfoList internally -# -# Since: 2.5 -## -{ 'struct': 'DummyForceArrays', - 'data': { 'unused': ['X86CPUFeatureWordInfo'] } } - ## # @NumaCpuOptions: # diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 49d89585288..7ea1302734f 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -38,7 +38,7 @@ #include "qemu/option.h" #include "qemu/config-file.h" #include "qapi/error.h" -#include "qapi/qapi-visit-machine.h" +#include "qapi/qapi-visit-machine-target.h" #include "qapi/qapi-visit-run-state.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qerror.h" diff --git a/target/i386/machine-stub.c b/target/i386/machine-stub.c new file mode 100644 index 00000000000..683916b5d55 --- /dev/null +++ b/target/i386/machine-stub.c @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QAPI x86 CPU features stub + * + * Copyright (c) 2020 Red Hat, Inc. + * + * Author: + * Philippe Mathieu-Daudé + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qapi/qapi-visit-machine-target.h" + +bool visit_type_X86CPUFeatureWordInfoList(Visitor *v, const char *name, + X86CPUFeatureWordInfoList **obj, + Error **errp) +{ + g_assert_not_reached(); +} diff --git a/target/i386/meson.build b/target/i386/meson.build index e0b71ade56c..07d4e8c2109 100644 --- a/target/i386/meson.build +++ b/target/i386/meson.build @@ -20,6 +20,7 @@ i386_ss.add(when: 'CONFIG_TCG', if_true: files( 'translate.c'), if_false: files('tcg-stub.c')) i386_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c')) i386_ss.add(when: 'CONFIG_SEV', if_true: files('sev.c'), if_false: files('sev-stub.c')) +i386_ss.add(when: 'CONFIG_SOFTMMU', if_false: files('machine-stub.c')) i386_softmmu_ss = ss.source_set() i386_softmmu_ss.add(files(